What is a tiny black bug that likes the window, and the pantry, and is mostly static?

It could be dark brown. You could mistake it for dirt if you didn’t know.

The size is about 1/6th of a grain of instant coffee.

If you squash it between your fingers it feels like, and looks like you squashed instant coffee.

It does not jump and has no wings. You hardly see it move, but when it is moving, it is too slow to escape.

EDITED: Or it could be the pantry that is it’s favorite. It can be found just about anything in the cupboard, like baking soda, sugar etc.